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"Positron emission tomography"

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https://www.readbyqxmd.com/read/29777796/identification-of-a-sodium-pump-na-k-atpase-%C3%AE-1-targeted-peptide-for-pet-imaging-of-breast-cancer
#1
Qian Wang, Shi-Bing Li, Yi-Ying Zhao, Da-Nian Dai, Hui Du, Yan-Zhu Lin, Jia-Cong Ye, Jing Zhao, Wei Xiao, Yan Mei, Yi-Tai Xiao, Shi-Chu Liu, Yan Li, Yun-Fei Xia, Er-Wei Song, Gang-Hua Tang, Wei-Guang Zhang, Zhi-Jiang Li, Xiao-Bin Zheng, De-Hai Cao, Man-Zhi Li, Qian Zhong, Zhong-Ping Chen, Chao-Nan Qian, Wei Fan, Guo-Kai Feng, Mu-Sheng Zeng
The sodium pump Na+ /K+ ATPase a1 subunit(NKA a1), an attractive cancer-related biomarker and therapeutic target, is closely related to the development and progression of several cancers including breast cancer. Currently, a NKA a1 inhibitor, UNBS1450, has already evidenced its great therapeutic potential in personalized cancer treatment. The ability of non-invasive imaging of NKA a1 expression would be useful for selecting cancer patients who may benefit from this drug. Here, we identified an S3 peptide that is specifically homed to breast cancer by phage display...
May 16, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29777523/application-of-cu-64-nodaga-psma-pet-in-prostate-cancer
#2
Sabina Sevcenco, Hans Christoph Klingler, Klaus Eredics, Alexander Friedl, Jenifer Schneeweiss, Peter Knoll, Thomas Kunit, Lukas Lusuardi, Siroos Mirzaei
INTRODUCTION: The high diagnostic potential of 64 Cu-PSMA PET-CT imaging was clinically investigated in prostate cancer patients with recurrent disease and in the primary staging of selected patients with advanced local disease. The aim of our study is to assess the uptake behavior in the clinical setting of 64Copper Prostate-Specific Membrane Antigen (64 Cu PSMA) Positron Emission Tomography/Computed Tomography (PET/CT) in prostate cancer. METHODS: A retrospective study was performed in 23 patients with intermediate, high risk and progressive disease at primary staging of prostate cancer...
May 17, 2018: Advances in Therapy
https://www.readbyqxmd.com/read/29777481/positron-emission-tomography-for-diagnosis-of-prosthetic-valve-endocarditis
#3
Vidhu Anand, Panithaya Chareonthaitawee, Martin Rodriguez-Porcel
No abstract text is available yet for this article.
May 18, 2018: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/29777402/a-national-study-of-the-use-of-asymptomatic-systemic-imaging-for-surveillance-following-breast-cancer-treatment-aft-01
#4
Jessica R Schumacher, Heather B Neuman, George J Chang, Benjamin D Kozower, Stephen B Edge, Menggang Yu, David J Vanness, Yajuan Si, Elizabeth A Jacobs, Amanda B Francescatti, Patricia A Spears, Jeffrey Havlena, Taiwo Adesoye, Daniel McKellar, David Winchester, Elizabeth S Burnside, Caprice C Greenberg
BACKGROUND: Although not guideline recommended, studies suggest 50% of locoregional breast cancer patients undergo systemic imaging during follow-up, prompting its inclusion as a Choosing Wisely measure of potential overuse. Most studies rely on administrative data that cannot delineate scan intent (prompted by signs/symptoms vs. asymptomatic surveillance). This is a critical gap as intent is the only way to distinguish overuse from appropriate care. OBJECTIVE: Our aim was to assess surveillance systemic imaging post-breast cancer treatment in a national sample accounting for scan intent...
May 17, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29777360/crossed-aphasia-following-cerebral-infarction-in-a-right-handed-patient-with-atypical-cerebral-language-dominance
#5
Xiaoping Tan, Yang Guo, Saihong Dun, Hongzan Sun
OBJECTIVE: Crossed aphasia (CA), usually referred to as an acquired language disturbance, is caused by a lesion in the cerebral hemisphere ipsilateral to the dominant hand, and the exact mechanism is not clear. The development of handedness is influenced by education and training and the impact of habitualization, while language is more susceptible to the impact of speech habits, and it is not absolutely accurate to judge cerebral language dominance by the degree of hand preference. METHODS: We describe a case of CA after right hemispheric stroke in a right-handed patient with atypical language dominance and attempt to analyze the mechanism of CA based on functional imaging methods, including arterial spin labeling (ASL) and positron emission tomography/magnetic resonance imaging (PET-MRI)...
May 18, 2018: Journal of Neurology
https://www.readbyqxmd.com/read/29777006/in-vivo-characterization-and-quantification-of-neurofibrillary-tau-pet-radioligand-18-f-mk-6240-in-humans-from-alzheimer-s-disease-dementia-to-young-controls
#6
Tobey J Betthauser, Karly A Cody, Matthew D Zammit, Dhanabalan Murali, Alexander K Converse, Todd E Barnhart, Charles K Stone, Howard A Rowley, Sterling C Johnson, Bradley T Christian
Tau positron emission tomography (PET) imaging has potential for elucidating changes in the deposition of neuropathological tau aggregates that are occurring during the progression of Alzheimer's disease (AD). This work investigates in vivo kinetics, quantification strategies and imaging characteristics of a novel tau PET radioligand [18 F]MK-6240 in humans. Methods: Fifty-one individuals ranging from cognitively normal young controls to persons with dementia underwent T1-weighted magnetic resonance imaging (MRI), and [11 C]PiB and [18 F]MK-6240 PET imaging...
May 18, 2018: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29777003/impact-of-reference-target-region-selection-on-amyloid-pet-standard-uptake-value-ratios-in-the-phase-1b-prime-study-of-aducanumab
#7
Ping Chiao, Barry J Bedell, Brian Avants, Alex P Zijdenbos, Marilyn Grand'Maison, Paul O'Neill, John O'Gorman, Tianle Chen, Robert Koeppe
Standardized uptake value ratios (SUVRs) are commonly used to quantify tracer uptake in amyloid beta positron emission tomography (Aβ-PET). Here, we explore the impact of target and reference region of interest (ROI) selection on SUVR effect size using interventional data from the ongoing Phase Ib PRIME study (NCT01677572) of aducanumab (BIIB037) in patients with prodromal or mild Alzheimer's disease (AD). Methods: Florbetapir PET SUVR was calculated at baseline (screening) and Weeks 26 and 54 for patients randomized to placebo and each of four aducanumab doses (1, 3, 6, and 10 mg/kg), using whole cerebellum, cerebellar grey matter, cerebellar white matter, pons, and subcortical white matter as reference regions...
May 18, 2018: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29776990/effect-of-2-psoriasis-treatments-on-vascular-inflammation-and-novel-inflammatory-cardiovascular-biomarkers-a-randomized-placebo-controlled-trial
#8
Nehal N Mehta, Daniel B Shin, Aditya A Joshi, Amit K Dey, April W Armstrong, Kristina Callis Duffin, Zelma Chiesa Fuxench, Charlotte L Harrington, Rebecca A Hubbard, Robert E Kalb, Alan Menter, Daniel J Rader, Muredach P Reilly, Eric L Simpson, Junko Takeshita, Drew A Torigian, Thomas J Werner, Andrea B Troxel, Stephen K Tyring, Suzette Baez Vanderbeek, Abby S Van Voorhees, Martin P Playford, Mark A Ahlman, Abass Alavi, Joel M Gelfand
BACKGROUND: Psoriasis is a chronic inflammatory disease associated with dyslipidemia, cardiovascular events, and mortality. We aimed to assess and compare the effect of treatment of moderate-to-severe psoriasis with adalimumab or phototherapy on vascular inflammation and cardiovascular biomarkers. METHODS AND RESULTS: Randomized, double-blind, trial of adalimumab, phototherapy, and placebo (1:1:1) for 12 weeks, with crossover to adalimumab for 52 weeks total. Outcomes included vascular inflammation by 18 F-fluorodeoxyglucose positron emission tomography/computed tomography and biomarkers of inflammation, insulin resistance, and lipoproteins...
June 2018: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29776864/putaminal-dopamine-depletion-in-de-novo-parkinson-s-disease-predicts-future-development-of-wearing-off
#9
Su Jin Chung, Yoonju Lee, Jungsu S Oh, Jae Seung Kim, Phil Hyu Lee, Young H Sohn
INTRODUCTION: The present study aimed to investigate whether the level of presynaptic dopamine neuronal loss predicts future development of wearing-off in de novo Parkinson's disease. METHODS: This retrospective cohort study included a total of 342 non-demented patients with de novo Parkinson's disease who underwent dopamine transporter positron emission tomography scans at their initial evaluation and received dopaminergic medications for 24 months or longer. Onset of wearing-off was determined based on patients' medical records at their outpatient clinic visits every 3-6 months...
May 10, 2018: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/29776597/the-role-of-fdg-pet-in-detecting-rejection-after-liver-transplantation
#10
Ashley M Watson, Neal Bhutiani, Prejesh Philips, Eric G Davis, Mary Eng, Robert M Cannon, Christopher M Jones
BACKGROUND: The activation and increased metabolic activity of T cells in acute cellular rejection could allow fluoro-2-deoxyglucose positron emission tomography to be utilized for detection of acute cellular rejection. The objective of this study was to evaluate the effectiveness of fluoro-2-deoxyglucose positron emission tomography in detecting acute cellular rejection in the clinical setting. METHODS: Fluoro-2-deoxyglucose positron emission tomography studies were performed on 88 orthotopic liver transplant patients at 7 and 17 days postoperatively (first positron emission tomography and second positron emission tomography, respectively)...
May 15, 2018: Surgery
https://www.readbyqxmd.com/read/29776444/mediastinal-staging-of-non-small-cell-lung-cancer-by-endobronchial-and-endoscopic-ultrasonography-with-or-without-additional-surgical-mediastinoscopy-mediastrial-study-protocol-of-a-multicenter-randomised-controlled-trial
#11
Jelle E Bousema, Marcel G W Dijkgraaf, Nicole E Papen-Botterhuis, Hermien W Schreurs, Jos G Maessen, Erik H van der Heijden, Willem H Steup, Jerry Braun, Valentin J J M Noyez, Fieke Hoeijmakers, Naomi Beck, Martijn van Dorp, Niels J M Claessens, Birgitta I Hiddinga, Johannes M A Daniels, David J Heineman, Harmen R Zandbergen, Ad F T M Verhagen, Paul E van Schil, Jouke T Annema, Frank J C van den Broek
BACKGROUND: In case of suspicious lymph nodes on computed tomography (CT) or fluorodeoxyglucose positron emission tomography (FDG-PET), advanced tumour size or central tumour location in patients with suspected non-small cell lung cancer (NSCLC), Dutch and European guidelines recommend mediastinal staging by endosonography (endobronchial ultrasound (EBUS) and endoscopic ultrasound (EUS)) with sampling of mediastinal lymph nodes. If biopsy results from endosonography turn out negative, additional surgical staging of the mediastinum by mediastinoscopy is advised to prevent unnecessary lung resection due to false negative endosonography findings...
May 18, 2018: BMC Surgery
https://www.readbyqxmd.com/read/29774076/the-human-somatostatin-receptor-type-2-as-an-imaging-and-suicide-reporter-gene-for-pluripotent-stem-cell-derived-therapy-of-myocardial-infarction
#12
Katrien Neyrinck, Natacha Breuls, Bryan Holvoet, Wouter Oosterlinck, Esther Wolfs, Hubert Vanbilloen, Olivier Gheysens, Robin Duelen, Willy Gsell, Ivo Lambrichts, Uwe Himmelreich, Catherine M Verfaillie, Maurilio Sampaolesi, Christophe M Deroose
Rationale: Pluripotent stem cells (PSCs) are being investigated as a cell source for regenerative medicine since they provide an infinitive pool of cells that are able to differentiate towards every cell type of the body. One possible therapeutic application involves the use of these cells to treat myocardial infarction (MI), a condition where billions of cardiomyocytes (CMs) are lost. Although several protocols have been developed to differentiate PSCs towards CMs, none of these provide a completely pure population, thereby still posing a risk for neoplastic teratoma formation...
2018: Theranostics
https://www.readbyqxmd.com/read/29774059/inflammation-in-stroke-the-role-of-cholinergic-purinergic-and-glutamatergic-signaling
#13
REVIEW
Abraham Martín, María Domercq, Carlos Matute
The inflammatory response is a major factor in stroke pathophysiology and contributes to secondary neuronal damage in both acute and chronic stages of the ischemic injury. Recent work in experimental cerebral ischemia has demonstrated the involvement of neurotransmitter signaling in the modulation of neuroinflammation. The present review discusses recent findings on the therapeutic potential and diagnostic perspectives of cholinergic, purinergic and glutamatergic receptors and transporters in experimental stroke...
2018: Therapeutic Advances in Neurological Disorders
https://www.readbyqxmd.com/read/29772738/angiogenesis-pet-tracer-uptake-68-ga-nodaga-e-crgdyk-%C3%A2-in-induced-myocardial-infarction-and-stromal-cell-treatment-in-minipigs
#14
Thomas Rasmussen, Bjarke Follin, Jens Kastrup, Malene Brandt-Larsen, Jacob Madsen, Thomas Emil Christensen, Morten Juhl, Smadar Cohen, Karsten Pharao Hammelev, Christian Holdflod Møller, Jens Peter Goetze, Philip Hasbak, Andreas Kjær
Angiogenesis is considered integral to the reparative process after ischemic injury. The αv β₃ integrin is a critical modulator of angiogenesis and highly expressed in activated endothelial cells. 68 Ga-NODAGA-E[(cRGDyK)]₂ (RGD) is a positron-emission-tomography (PET) ligand targeted towards αv β₃ integrin. The aim was to present data for the uptake of RGD and correlate it with histology and to further illustrate the differences in angiogenesis due to porcine adipose-derived mesenchymal stromal cell (pASC) or saline treatment in minipigs after induction of myocardial infarction (MI)...
May 16, 2018: Diagnostics
https://www.readbyqxmd.com/read/29772552/pet-ct-in-the-diagnosis-and-prognosis-of-osteosarcoma
#15
Xiaojuan Zhang, Zhe Guan
Osteosarcoma is an aggressive malignancy that usually occurs in children and young adults, and long-term survival is only about 20% in patients with metastasis or recurrent disease. Traditional non-invasive techniques, such as positron-emission tomography (PET) scanning, magnetic resonance imaging (MRI) or computed tomography (CT) scanning, may not identify single lesions in the early stage or accurately detect small lesions. A novel technique, positron emission tomography/computed tomography (PET/CT), which is widely used in clinical practice, shows more accuracy, sensitivity, and specificity in the diagnosis of osteosarcoma...
June 1, 2018: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/29771717/prognostic-predictive-value-of-preoperative-intratumoral-2-deoxy-2-18f-fluoro-d-glucose-uptake-heterogeneity-in-patients-with-high-grade-serous-ovarian-cancer
#16
Shuai Liu, Zheng Feng, Zhaoxia Jiang, Hao Wen, Junyan Xu, Herong Pan, Yu Deng, Lei Zhang, Xingzhu Ju, Xiaojun Chen, Xiaohua Wu
OBJECTIVE: This study aimed to explore the clinical and prognostic significance of pretreatment positron-emission tomography/computed tomography (PET/CT) parameters, especially 2-deoxy-2-(F)fluoro-D-glucose-based heterogeneity, in high-grade serous ovarian cancer (HGSC). MATERIALS AND METHODS: We retrospectively investigated 56 patients with HGSC who underwent PET/CT before primary surgery at our hospital between January 2010 and June 2015. None of these patients received neoadjuvant chemotherapy...
May 16, 2018: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/29771605/bilateral-conjunctival-granulomas-in-a-young-lady-with-hypereosinophilic-syndrome-a-case-report
#17
Kalpana Babu, Bhagya Sudheer, S Krishna Kumar
PURPOSE: To report an interesting case of bilateral conjunctival granulomas in a young lady with hypereosiniophilic syndrome. MATERIALS & METHODS: Retrospective interventional case report Results: A 37-year-old lady presented with irritation and redness in both eyes of 15-day duration. She had a history of abdominal pain and diarrhea since 8 months for which she has been extensively investigated including a positron emission tomography (PET) scan and an ileal biopsy which showed chronic granulomatous inflammation with eosinophils...
May 17, 2018: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/29771387/functional-brown-adipose-tissue-and-sympathetic-activity-after-cold-exposure-in-humans-with-type-1-narcolepsy
#18
Lotte Hahn Enevoldsen, Marie Tindborg, Nichlas Lindegaard Hovmand, Christina Christoffersen, Helga Ellingsgaard, Charlotte Suetta, Bente Merete Stallknecht, Poul Joergen Jennum, Andreas Kjær, Steen Gammeltoft
Study objectives: To investigate the activity of brown adipose tissue (BAT) in type 1 narcolepsy patients during cold exposure using two separate scans of sympathetic and metabolic activity of BAT in order to evaluate whether orexin deficiency leads to altered non-shivering thermoregulation in narcolepsy. Methods: Seven patients with type 1 narcolepsy and seven healthy controls underwent two consecutive scans after 2 h cold exposure: 123I-meta-iodo-benzyl-guanidine (123I-MIBG) single photon emission computed tomography and 18F-2-deoxy-glucose (18F-FDG) positron emission tomography and computed tomography to visualize sympathetic innervation and metabolic activity of BAT, respectively...
May 15, 2018: Sleep
https://www.readbyqxmd.com/read/29771362/rates-of-cerebral-protein-synthesis-in-primary-visual-cortex-during-sleep-dependent-memory-consolidation-a-study-in-human-subjects
#19
Dante Picchioni, Kathleen C Schmidt, Kelly K McWhirter, Inna Loutaev, Adriana J Pavletic, Andrew M Speer, Alan J Zametkin, Ning Miao, Shrinivas Bishu, Kate M Turetsky, Anne S Morrow, Jeffrey L Nadel, Brittney C Evans, Diana M Vesselinovitch, Carrie A Sheeler, Thomas J Balkin, Carolyn B Smith
If protein synthesis during sleep is required for sleep-dependent memory consolidation, we might expect rates of cerebral protein synthesis (rCPS) to increase during sleep in the local brain circuits that support performance on a particular task following training on that task. To measure circuit-specific brain protein synthesis during a daytime nap opportunity, we used the L-[1-(11)C]leucine positron emission tomography (PET) method with simultaneous polysomnography. We trained subjects on the visual texture discrimination task (TDT)...
May 15, 2018: Sleep
https://www.readbyqxmd.com/read/29771279/peri-operative-therapy-for-operable-gastroesophageal-adenocarcinoma-past-present-and-future
#20
V Aggelis, D Cunningham, F Lordick, E C Smyth
Surgery represents the only chance of cure for patients with gastroesophageal adenocarcinoma; however surgery alone does not cure most patients. Over the past decade, several multimodality adjunctive treatments have improved survival for patients with operable gastroesophageal adenocarcinoma who are undergoing surgical resection; these include peri-operative chemotherapy, neoadjuvant chemoradiotherapy, adjuvant chemotherapy and adjuvant chemoradiotherapy. More recently, the results of several large randomised trials are leading to a shift in the peri-operative treatment of gastroesophageal cancer, away from anthracycline-based and towards taxane-based chemotherapy regimens...
May 16, 2018: Annals of Oncology: Official Journal of the European Society for Medical Oncology
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